I solved this issue with help from @sickOS from Manjaro forum and this link: https://github.com/maz-1/h96-pro-plus-armbian-stuff/search?q=QCA9377
For the detail of step by step you can see my post on Manjaro forum here: https://forum.manjaro.org/t/manjaro-arm-for-rockchip-tv-boxes/44998/55
But for those of you that need the dtb (I edited the "rk3399-rockpro64.dtb" bluetooth section) you can find it here:
rk3399-H96Max.dtb rk3399-H96Max.dts
It's simple, just copy and paste my "rk3399-H96Max.dtb" into your dtb folder, then change your configuration text to this new dtb. Then restart your box. Your Wifi and Bluetooth should work out of the box. But please make sure that you have installed armbian-full-firmware from armbian-config.
